USPTO Patents Application 09779854

Amendment to the Claims :

The listing of claims will replace all prior versions, and listings of claims in
the application:

Listing of Claims :

1 . (Currently Amended) A balanced antenna for connecting to a balanced
power amplifier stage in a portable communications device, the balanced power
amplifier stage ftavmg -includinq f irst and second outputs, the antenna comprising
a ground plane and first and second antenna elements spaced apart from eaeb
oth e r and from the ground plane, wherein the first antenna element s ar e arrang e d
to b e opposit e on e another a nd lies in a first antenna plane and a second antenna
element lies in a second antenna plane and the first and second antenna planes
are substantially parallel and spaced apart from each other, and wherein each of

* the antenna elements has a feed point connectable to one of the outputs from the
power amplifier stage.

2. (Currently Amended) A balanced antenna according to claim 1 ,
wherein the antenna elements are substantially identica l each of the antenna
elements having an orientation direction, defined from the feed point to an end
opposite the feed point, and the orientation directions of the first and second
antenna elements are reversed with respect to one another -and-one ele m e n t-is
r e v e rs e d w i th r o spoct to tho oth o r so that tho rad i ation patterns sup e rpos e.

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3. (Original) A balanced antenna according to claim 1 , wherein the feed
points of the antenna elements are arranged at opposite sides of the antenna
arrangement.

4. (Original) A balanced antenna according to claim 1 , wherein the first
and second antenna elements comprise conductive plates.

5. (Original) A balanced antenna according to claim 1 , wherein the
portable communications device includes a printed circuit board and the ground

' plane comprises the printed circuit board.

6. (Currently Amended) A balanced a nt e nnna antenna according to
claim 1, wherein the first and second antenna ele m e nts planes are substantially
perpendicular to the ground plane.

7. (Original) A balanced antenna according to claim 1, wherein the space
between the antenna elements comprises air.

8. (Currently Amended) A balanced ant e nnn a antenna according to
claim 1 , wherein the first and second antenna e l e m e nts planes are substantially
parallel to the ground plane.

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9. (Currently Amended) A balanced antenna according to claim 8, wherein
the space between the antenna elements comprises a dielectric material.

10. (Original) A balanced antenna according to claim 9, wherein the
dielectric material has a high dielectric constant.

1 1 . (Original) A balanced antenna according to claim 10, wherein the
dielectric constant is greater than about 8.

12. (Original) A balanced antenna according to claim 1, further comprising
a floating ground between the ground plane and the antenna elements.

13. (Original) A balanced antenna according to claim 12, wherein the
floating ground comprises a conductive plate which is electrically isolated from the
ground plane.

14. (Original) A balanced antenna according to claim 13, wherein the
conductive plate is spaced apart from the ground plane by a dielectric support.

15. (Original) A mobile telephone including a balanced antenna according
to claim 1 .

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16. (Currently Amended) A portable communications device comprising a
circuit board having including a plurality of electronic components mounted
thereon and a balanced antenna, the balanced antenna comprising first and
second substant i a ll y p a ra llel antenna elements mounted to the board, wherein the
first antenna element lies in a first plane and the second antenna element lies in a
second plane and the first and second planes are substantially parallel and
spaced apart from each other, each of the antenna elements having a top edge
and a bottom edge, the bottom edge being nearer the board than the top edge,
the device further comprising a ground plane disposed between the bottom edge
of the antenna elements and the board, the ground plane being electrically
isolated from the antenna elements and the board.

17. (Currently Amended) A balanced antenna for a portable
communications device, comprising a ground plane and first and second
substantially similar antenna elements spaced apart from each other and from the
ground plane, the first and s e cond elements b ei ng substant i a l ly p a rall el to th e
ground p ia n o antenna element lying in a first antenna plane and the second
antenna element lying in a second antenna plane, wherein the first and second
antenna planes and the ground plane are substantially parallel and spaced apart
from each other, and wherein the first and second antenna elements are and
being-aligned in opposite directions with respect to one another.

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18. (Currently Amended) A method of manufacturing a balanced antenna
for connecting to a balanced power amplifier stage in a portable communications
device, the balanced power amplifier stage hav i ng including first and second
outputs, the antenna comprising a ground plane and first and second antenna
elements , lying in first and second generally parallel planes, spaced apart from
each other and from the ground plane, wherein the antenna elements are
arranged to be opposite one another and to overlap to a predetermined extent,
and each of the antenna elements has a feed point connectable to one of the
outputs from the power amplifier stage, the method comprising varying the extent
to which the antenna elements overlap to tune the antenna for use in a
predetermined frequency band.

19. (New) A portable communications device including a balanced
antenna according to claim 1.